A way to reduce highway guardrail costs: machine-driving of wooden posts.
| Main Author: | |
|---|---|
| Format: | Government Document Book |
| Language: | English |
| Published: |
Upper Darby, Pa. :
U.S. Forest Service,
1967.
|
| Series: | United States. Northeastern Forest Experiment Station (Upper Darby, Pa.). U.S. Forest Service research paper NE- ;
81 |
| Subjects: |
| Item Description: | Cover title. |
|---|---|
| Physical Description: | 19 pages : illustrations ; 23 cm. |
| Bibliography: | Literature cited: page 19. |